Monarch caterpillar
Mass Audubon State of the Birds
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State of the Birds
Black-capped Chickadee
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Tracking This Bird In Massachusetts
Climate Vulnerability Score
Highly Vulnerable
Mass Audubon Mean likelihood of occurrence (current)
0.52
Mass Audubon Mean likelihood of occurrence (2050)
0.22
Mass Audubon Absolute change in likelihood of occurrence
-0.30
U.S. Forest Service Climate Change Bird Atlas (Hadly Hi emissions scenario)a
-36.70
National Audubon Societyb
n/a
a USFS model data for Massachusetts by 2100
b National Audubon Society's Climate Change Atlas was completed on a continental scale.
Mass Audubon and USFS both indicate declines associated with climate change. Results not presented by National Audubon.
Breeding Bird Atlas
Atlas I Blocks
907
Atlas II Blocks
999
Percent of state occupied - Atlas I
93
Percent of state occupied - Atlas II
96
Percent change
101
Breeding Bird Survey
Annual trend 1966-2010
0.2%
P-value
not significant
Number of routes
27
Recent trend 2000-2010
0.2%
Christmas Bird Count
Trend (1963-2008)
0
Significantly different than zero
yes
Trend (1963-1979)
0
Significantly different than zero
no
Trend (1979-2008)
0
Significantly different than zero
no
Christmas Bird Count Sightings By Year
Data reflects sightings per person per hour in order to account for varying numbers of yearly volunteers.
Habitat Usage
Breeding
Forest, Forested Wetland, Urban and Suburban
Wintering
Forest, Urban and Suburban